2175121113 has 32 divisors (see below), whose sum is σ = 3256993152. Its totient is φ = 1279948800.

The previous prime is 2175121099. The next prime is 2175121127. The reversal of 2175121113 is 3111215712.

2175121113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2175121099) and next prime (2175121127).

It is not a de Polignac number, because 2175121113 - 2⁹ = 2175120601 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2175121513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163243 + ... + 176063.

It is an arithmetic number, because the mean of its divisors is an integer number (101781036).

Almost surely, 2^2175121113 is an apocalyptic number.

It is an amenable number.

2175121113 is a deficient number, since it is larger than the sum of its proper divisors (1081872039).

2175121113 is a wasteful number, since it uses less digits than its factorization.

2175121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12985.

The product of its digits is 420, while the sum is 24.

The square root of 2175121113 is about 46638.1937150229. The cubic root of 2175121113 is about 1295.6702330037.

Adding to 2175121113 its reverse (3111215712), we get a palindrome (5286336825).

The spelling of 2175121113 in words is "two billion, one hundred seventy-five million, one hundred twenty-one thousand, one hundred thirteen".